Nitrosyl hexachloroplatinate

O2CIF, Chloryl fluoride, 24 3 02Cl2N2Pt, Nitrosyl hexachloroplatinate-(IV) (2 1), 24 217... 

Nitrosyl hexachloroplatinate(IV) was first prepared by the action of excess aqua regia on platinum and has been reported since by several investigators using essentially the same method. It can also be prepared by the action of fuming nitric acid on platinum(IV) chloride solution or on hexachloroplatinic(IV) acid. The yields obtained by the above methods are quite low, and extreme care is necessary in order to isolate the compound. 

The support, zirconia (ISA), was supplied by the Norton Company. The oxide was grounded and sieved to a particle size ranged from 0.16 to 0.25 mm, and calcined at 773 K. Its surface properties, 63.3 m g of specific surface and average pore diameter of 8.60 nm, were determined from the nitrogen adsorption isotherms. The catalysts were prepared by adsorption from solution and/or impregnation of precursor(s), ruthenium nitrosyl nitrate (Alfa) and hexachloroplatinic acid (Aldrich), onto the support. Being zirconia isoelectric point 6.5 (determined by electrophoresis [17] using a Malvern Instrument Zetasizer 4) the precursors solution pH value was kept sufficiently low to enable the desired adsorption of complex metal anions. 

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